JPS5938241Y2 - Work material detection device for cantilever type woodworking super finishing planer - Google Patents

Description

[Detailed description of the invention] This invention is a cantilever-type woodworking super-finishing planer in which a surface plate equipped with a planer blade and a material feeding device are supported in a cantilever manner on the main body frame with one side open. This relates to improvements in equipment.

The cantilever type woodworking super finishing planer with the above configuration has the advantage of being able to process workpieces that are wider than the surface plate and material feeding mechanism frame, or workpieces that have a shaped cross section. When installing a photoelectric workpiece detection device to automatically control switching of the material direction, conventionally the light-emitting element and the light-receiving element were placed on the surface plate or on both sides of the material-feeding mechanism frame in the front-back direction (feeding direction). Usually, they are installed opposite each other so that they can be moved only in the vertical direction (in the material direction) and in the vertical direction, but cannot be moved in the left-right direction (lateral direction).

(Refer to Japanese Patent Application Laid-Open No. 50-141892.) Therefore, when processing a workpiece whose width is wider than the corresponding spacing of the pixel elements, it is necessary to remove the element attached to the open side of the surface plate case or material feeding mechanism frame. Therefore, there was a drawback that it was not possible to detect the processed material.

The present invention improves this and fixes either the light emitting element or the light receiving element to a mounting member provided on the surface plate or the open side of the material feeding mechanism frame so that the degree of protrusion can be adjusted. Even if the width is wide, the element can be installed at a position where it will not interfere with the transfer of the workpiece by simple adjustment without removing the element.

An embodiment of the present invention will be described with reference to the attached drawings. Reference numeral 1 denotes a frame installed on the side of the installation dust 2, 3 a surface plate equipped with a knife stock 5 to which a planer blade 4 is attached; It fits into a vertical sliding guide 6 provided on the side surface of the handle 7, and is raised and lowered by operating a handle 7.

Reference numeral 8 denotes a material feeding mechanism frame protruding laterally from the upper part of the frame 1 in correspondence with the surface plate 3. A driving roller 9 and a driven roller 10 are mounted on the frame 8, and a material feeding belt 11 is hung on the frame 8. A workpiece passage 12 with one side open is formed between the workpiece and the surface plate 3.

The drive roller 9 is reversibly driven by a reversible motor (not shown) to switch between normal feeding and reverse feeding of the material conveying belt 11.

Reference numeral 13 denotes a protrusion that protrudes from the open side surface 3a of the surface plate 3, and the two guide bars 15 are inserted into the two guide holes 14 drilled in the surface plate 3 from the protrusion 13. The guide bar 15 is inserted in parallel with the degree of protrusion in the direction freely adjustable, and one guide bar 15 is fixed at an arbitrary degree of protrusion by a thumb screw 16 screwed into the side surface of the protrusion 13.

Reference numeral 11 denotes a light emitting element having a large light emitting surface 18, which is attached to a mounting plate 19 fixed across between the protruding ends of each of the guide bars 15, so that a parallel detection light beam a having a large luminous flux cross section is directed onto the surface plate 3. Irradiate at right angles to the material feeding direction.

Reference numeral 20 denotes a light receiving element having a large light receiving surface 21 corresponding to the light emitting surface 18 of the light emitting element 1γ.
The light emitting element 17 is fixed to the side surface 3b on the side supported by the light emitting element 17, and the detection light beam a is blocked by the workpiece being transferred through the workpiece passage 12 or is received again by the workpiece passing through the workpiece passage 12. The motor operates to control starting/stopping, switching of rotation direction, etc. of the reversible motor.

In the above, the light-emitting element 11 and the light-receiving element 20 may be replaced and placed opposite each other, or the old guide bar 15 may be attached to the material feeding mechanism frame 8.

Reference numeral 22 denotes a shielding plate with a through hole 23 bored at its tip, which is rotatably fixed to the side surface 3b of the surface plate 3 with a bolt 24 inserted through its base, and whose tip is connected to the light-receiving surface of the light-receiving element 20. 21 to block the detection light beam a, and allow only the thin detection light beam a' that has passed through the through hole 23 to reach the light receiving surface 21.

By rotating the shielding plate 22 around the bolt 24, the position where the detection light beam a' is irradiated onto the light receiving surface 21 is moved up and down, and the processed material is The upper and lower detection positions are adjusted according to the side surface shape of the door.

As clarified by the description of the above embodiments, the present invention is such that either the light emitting element 17 or the light receiving element 20 is mounted laterally on the open side surface 3a of the surface plate 3 (or the material feeding mechanism frame 8). Since the construction is such that it can be fixed to the guide bar 15 provided with an adjustable protrusion degree and installed laterally at an arbitrary distance from the side surface 3a, it is possible to handle workpieces wider than the surface plate 3 and the material feeding mechanism frame 8. When processing a workpiece, the guide bar 15 is protruded from the open side surface 3a as shown by the chain line in Figure 2, and the light emitting element 17 (t or light receiving element 20) is installed in a position where it does not interfere with the movement of the workpiece. If the width of the material to be processed is narrow, it can be installed close to the side of the surface plate 3 (or the material feeding mechanism frame 8) as shown by the solid line in the same figure, so that it does not interfere with the work. You can do it like this.

According to the present invention, it is possible to easily detect wide workpieces by simply adjusting the degree of protrusion of the guide bar 15, without sacrificing the advantages of the cantilever type woodworking super finishing planer. This has the advantage of being able to detect the workpiece.

[Brief explanation of the drawing]

The accompanying drawings show an embodiment of the present invention, FIG. 1 is a side view;
FIG. 2 is an enlarged front view of the main parts. 3 → Surface plate, 4 → Planer blade, 8 → Material feeding mechanism frame, 12
→ Processing material passage, 15 → Guide bar, 100 light emitting element, 2
0 → Light receiving element, a → detection light beam, b → processed material.

Claims (1)

[Scope of utility model registration request] A surface plate equipped with a planer blade and a material feeding mechanism frame equipped with a material feeding device are supported in a cantilevered manner on the main body frame to form a workpiece passage with one side open, and the surface plate is connected to the yd mechanism. When the frame falls, a light emitting element and a light receiving element are installed oppositely across the workpiece path, and the passage of the workpiece being transferred through the workpiece path is detected by the light receiving operation of the light receiving element, and the material feeding device is stopped. In a cantilever-type woodworking super finishing planer that controls switching of the material feeding direction, either the light emitting element 17 or the light receiving element 20 is attached in the lateral direction to the open side surface of the surface plate turning or the material feeding mechanism frame. The light emitting element 17 or the light receiving element 20 can be fixed to a guide bar 15 which is inserted through the guide bar 15 so as to be able to adjust the degree of protrusion thereof, and the light emitting element 17 or the light receiving element 20 can be installed at a side part at an arbitrary distance from the open side side surface. This is a workpiece detection device for cantilever type woodworking super finishing planer.